In this study, The 30 mol% La-Y co-doped HfO 2 was prepared by solid-phase synthesis and the effect of doping content La element on phase structure high temperature stability investigated XRD. results show that LaYSH is pyrochlore p-phase + fluorite c-phase when 6 9 mol%, a single 0-3 mol%. After sintering at 1600 °C for 50 h, 0, 1 remained as c-phase, 3 produced 2.54 wt% p-phase, in decreased ...

The performance of an amperometric biosensor constructed by associating tyrosinase (Tyr) enzyme with the advantages of a 3D gold nanoelectrode ensemble (GNEE) is evaluated in a flowinjection analysis (FIA) system for the analysis of Levodopa (Ldopa). GNEEs were fabricated by electroless deposition of the metal within the pores of polycarbonate track-etched membranes. A simple solvent etching pr...

The title compound, C23H17FN2O3, crystallizes with two independent mol-ecules in the asymmetric unit. The mol-ecules are connected by pairs of N-H⋯O hydrogen bonds and have slightly different conformations, as indicated by the dihedral angles between the central imidazolidine-2,4-dione ring and its three substituents. In one mol-ecule, these are 60.56 (1) and 82.66 (9)° to the phenyl rings and ...

The title compound, C(24)H(24)NO(3)P, crystallizes as a racemate with two mol-ecules in the asymmetric unit. The structural features (bond lengths and angles) of the two mol-ecules are almost identical. The dihedral angle between the anthracene and toluidine rings is similar in the two mol-ecules, with values of 48.36 (9) and 51.15 (9)°. The methyl groups of one of the meth-oxy groups in one mo...

The title compound, C14H11FN2OS, contains two mol-ecules (A and B) in the asymmetric unit, with different conformations. In mol-ecule A, the dihedral angles between the central thio-urea grouping and the phenyl and fluoro-benzene rings are 28.77 (8) and 41.82 (8)°, respectively, and the dihedral angle between the ring planes is 70.02 (9)°. Equivalent data for mol-ecule B are 8.46 (8), 47.78 (8)...

The asymmetric unit of the title hydrated salt, C18H40N4P(+)·Cl(-)·2H2O, consists of two ionic mol-ecules and four water mol-ecules. The mol-ecular geometry around the penta-coordinate P atom is trigonal-bipyramidal, with a H atom and an apical N atom in axial positions and three N atoms with isobutyl substituents in equatorial positions. The Cl(-) ions and water mol-ecules are connected via O-...

The asymmetric unit of the title compound, C(9)H(11)ClN(4), contains two virtually planar mol-ecules that differ in conformation about the bond connecting the hydrazine and pyridazine units. The 3-chloro-6-hydrazinylpyridazine and cyclo-pentane groups are oriented at dihedral angles of 4.5 (3) and 8.8 (4)° in the two mol-ecules. In the crystal, the mol-ecules form a one dimensional polymeric st...

The asymmetric unit of the title compound, C(14)H(17)N(3)O(3)·0.25H(2)O, comprises two independent organic mol-ecules and a water mol-ecule lying on a crystallographic twofold rotation axis with 50% site occupancy. In both independent mol-ecules, the cyclo-hexene rings adopt envelope conformations but superposition of the two molecules shows that the flap atoms point in opposite directions. In ...

In the crystal structure of the title compound, C(28)H(40)N(2)O(3)S, there are two mol-ecules per asymmetric unit; in each of these mol-ecules, the cyclo-hexyl rings adopt chair conformations. The dihedral angles between the benzene rings are 16.89 (9) and 34.11 (9)°. Each mol-ecule contains an intra-molecular O-H⋯N hydrogen bond, and inter-molecular N-H⋯O hydrogen bonds are also present. In bo...

background & aim: ocimum basilicum l. is belong to the lamiaceae family which is cultivated as a culinary, industrial and medicinal plants in some countries from thousands years ago. the seed of this plant is rich in poly un-saturated fatty acids (pufa) and produced a large amount of mucilage. experimental: the oil of seed was extracted separately and converted to fatty acids methyl esters...